package com.cloud.alibaba.mapper;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

/**
 * @author 刘志强
 * @date 2020/11/25 13:48
 */
@Mapper()
public interface ProducerMapper {

    /**
     * 添加用户
     * @param userName
     * @return
     */
    Integer addUser(@Param("userName") String userName);
}
